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Finding the Fourth Proportional to 53,497.80, 80,253.72 and 18,428.04

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Solution

The fourth proportional to 53,497.80, 80,253.72 and 18,428.04 is: 27,644.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,497.80 : 80,253.72 = 18,428.04 : x
  2. Step 2: Convert to fraction form
    53,497.80/80,253.72 = 18,428.04/x
  3. Step 3: Cross multiply
    53,497.80x = 80,253.72 × 18,428.04
  4. Step 4: Simplify right side
    53,497.80x = 1,478,918,762.31
  5. Step 5: Solve for x
    x = 1,478,918,762.31/53,497.80
  6. Step 6: Final answer
    x = 27,644.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.